CVE-2020-28368: Debian Linux

Medium severity, CVSS 4.4. EPSS: 0.4% chance of exploitation in the next 30 days.

Xen through 4.14.x allows guest OS administrators to obtain sensitive information (such as AES keys from outside the guest) via a side-channel attack on a power/energy monitoring interface, aka a "Platypus" attack. NOTE: there is only one logically independent fix: to change the access control for each such interface in Xen.

Affected products

• Debian Debian Linux: version 10.0 only
• Fedoraproject Fedora: version 32 only
• Xen Xen: up to and including 4.14.0

Published 2020-11-10. Last modified 2026-06-17.